My D series on a SIV body is being rebuilt and I have just been told by the bodywork chap that he thinks there should be a courtesy light switch on the tailgate but he doesnt see any holes in the fibreglass. Does anyone know and/or have pictures please?

Hi,
Sorry this is so late. You probably have resolved the issue. Rootes sold an accessory mercury boot lid light, a simple holder and bulb. It is not outside the bounds of accepted period Rootes mods to have fitted one. They are common on EBay at low cost. Lucas sold them widely for many Brit cars. Simple Pos feed with fixing srew as the earth (ground)